In the U.S., the name is associated with two sports teams -- one baseball and one football. The baseball team used to be in New York City; they're somewhere in Californai now. The football name plays in New Jersey but is named the New York Giants.

And, as has been pointed out by by jonadab and illuminatus, they're also well-known in the writings of Tolkien, the Norse, and J.K. Rawlings... 8-)